と([思「おも」]う、[言「い」]う、[考「かんが」]える) => That A N4
Particles
かける => Is doing, haven't finished yet N2
Will, Decision, “Doing”
[続「つづ」]ける => continues, to continue to N4
Secondary Verb
と[思「おも」]いきや => Even though A (was thought/expected), different result B N1
Contrast/Surprise
だろうと[思「おも」]う => I think probably A N4
Sentence Endings
ようと[思「おも」]う => I think I will A N4
Causative, Passive, Volitional
かと[思「おも」]ったら/かと[思「おも」]うと => Athough A, B., As soon as I noticed A, B, almost immediately after A, B N2
Time, Situation
[決「けっ」]して~ない => Won’t, isn’t N3
Will, Decision, Doing
てはいけない => May not A, must not A N4
Can, Should, Must
わけにはいかない => Must not A, Must A N3
Needs, Requirement
なくてはいけない => Must do A; have to A N4
Can, Should, Must
[尊敬語「そんけいご」] => Respectful form of A N4
Honorifics